The cryogenic ball valve is used to cut off or connect the media in various pipelines of Class150--Class1500.the valves made of different materials are suitable for various media and different temperature.the lowest working temperature is -196℃。The drivin
RE series crossed roller bearings is with the features as follows:1.Separate inner ring with outer ring rotating;2.High Precision: P5, P4, P2;3.High rigidity: with preload;4.Small Size: save space for machine tools;5.Slim bearings;6.ID dimensions: 50mm -